Wildbad 8

SABA; Villingen

  • Year
  • 1957/1958
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 21572
    • Brand: Schwer & Söhne, GmbH

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Tubes
  • 7
  • Number of Transistors
  • 0
  • Main principle
  • Superheterodyne (common); ZF/IF 460/6750 kHz
  • Tuned circuits
  • 6 AM circuit(s)     9 FM circuit(s)
  • Wave bands
  • Broadcast, Long Wave, Short Wave plus FM or UHF.
  • Power type and voltage
  • Alternating Current supply (AC) / 110; 130; 155; 185; 220 Volt
  • Loudspeaker
  • 3 Loudspeakers
  • Power out
  • 4 W (unknown quality)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Wildbad 8 - SABA; Villingen
  • Shape
  • Tablemodel with Push Buttons.
  • Dimensions (WHD)
  • 600 x 380 x 260 mm / 23.6 x 15 x 10.2 inch
  • Notes
  • dreh- und abschaltbare Ferritantenne.
  • Net weight (2.2 lb = 1 kg)
  • 11.9 kg / 26 lb 3.4 oz (26.211 lb)
  • Price in first year of sale
  • 359.00 DM
  • External source of data
  • Erb

 Collections | Museums | Literature

 Forum

Forum contributions about this model: SABA; Villingen: Wildbad 8

Threads: 3 | Posts: 11

Hi all,

This is my very first message here since I became a member so please excuse any beginners mistakes.

I am restoring a Saba Wildbad 8 and so far I've recapped it. I also noticed the voltages to be too low so I placed a 1N4007 in place of the selenium rectifier. The voltage is now about 10-15 volts to high. So the selenium rectifier was probably old and weak. Always good to replace them anyway. The a bit too high voltage I will fix with an resistor.

The problem I am having now is that I feel the sensitivity is quite low. I have done some meassurments on the local oscillator (at g3 on tube Rö1) and found the voltages to be quite strange (a bit too low voltages?). Strange to my knowledge at least.

Here is a list of some random meassurements I did. Not very exact as I just took the readings of my osciloscope. ( I will present both Pk-Pk and RMS values)

These are all frequencies of the local oscillator meassured at g3 on tube Rö1

On shortware

6.3 MHz 2.1 Vpk-pk 680 mVrms
6.7 MHz 3.9 Vpk-pk 1.32 Vrms
6.8 MHz 1.2 Vpk-pk 355 mVrms
7 MHz 3.68 Vpk-pk 1.25 Vrms
8 MHz 5.6 Vpk-pk 1.9 Vrms
10 MHz 6.2 Vpk-pk 2.05 Vrms
15 MHz 2.2 Vpk-pk 750 mVrms
16 MHz 600 mVpk-pk 240 mVrms

As you can see there is a big dip in voltage at about the frequency of the IF for FM. Also the LO-freq is very low at 6.3 MHz and drops to about nothing above 16 Mhz. So something is wrong here i guess. Strange that the LO voltage drops at the IF-freq for FM when tuning at shortware.

Next up is Medium Wave

2 MHz 16.6 Vpk-pk 5.62 Vrms
1.4 MHz 29.2 Vpk-pk 10.1 Vrms
960 kHz 19.2 Vpk-pk 6.6 Vrms

Here voltages are more normal?

Last up is Long Wave

600 kHz 20.6 Vpk-pk 7.15 Vrms
680 kHz 34.2 Vpk-pk 12 Vrms
800 kHz 19 Vpk-pk 6.52 Vrms

Anyone know what the voltages should be? They seem very low at shortware compared to medium and long wave.

Any insight or suggestions will be very welcome!

Best regards

Jörgen Overgaard

Jörgen Overgaard, 02.Apr.10

Weitere Posts (4) zu diesem Thema.

Hallo  Kollegen,

mich sprach vor kurzem ein anderer Sammler und Besitzer eines SABA-Wildbad auf die bei so vielen SABA-Radios fehlenden Knopfblenden an. Natürlich könnten es auch zwei gebrauchte sein. Ein anderer Sammlerkollege hat vor längerer Zeit hier im Forum mal geschrieben, dass er solche Messingblenden nachfertigen kann. Vielleicht könnte das Mitglied sich ja auch nochmal melden.

Viele Grüße und danke schonmal

     Andreas Peukert

Andreas Peukert, 03.May.07

Weitere Posts (3) zu diesem Thema.

Hallo Forum,
beim Saba Wildbad findet sich zur Siebung die folgende Schaltung:

Was macht es für einen Sinn, die beiden Minusseiten der Elkos noch über einen weiteren Elko und einen parallelen Widerstand an Masse zu legen ? Bessere Unterdrückung der Restwelligkeit bei Einweggleichrichtung ? Ich habe keine Ahnung, wer klärt mich auf ?

Gruß

Holger Pflug

H. P., 02.Mar.06

Weitere Posts (4) zu diesem Thema.